Cerium, element properties | Periodic Table of the Chemical Elements

Cerium

Latin name	Cerium
English name	Cerium
chemical symbol	Ce
atomic number	58
relative atomic mass	140,115
period	6
group	III.B
classification	lanthanides
discovery year	1803
discoverer	Berzelius Hisinger
melting point [°C]	798
boiling point [°C]	3433
density [g cm^-3]	6,78
density at melting point [g cm^-3]	6,55
electronegativity [Pauling]	1,12
oxidation states	II, III, IV
electron configuration	[Xe]4f1 5d1 6s2
covalent radius [pm]	165
specific heat [J g^-1K^-1]	0,19
heat of fusion [kJ mol^-1]	5,46
thermal conductivity [W m^-1 K^-1]	11
el. conductivity [S m^-1]	1,4.10⁶
1. ionizing potential [eV]	5,5387
2. ionizing potential [eV]	10,851
3. ionizing potential [eV]	20,2
Mohs hardness	2,5
Vickers hardness [MPa]	270
Brinell hardness [MPa]	412
shear modulus [GPa]	14
Young's modulus [GPa]	34
point of superconductivity [K]	0,022
state at normal conditions	solid

Cerium is an iron-gray lustrous metallic element.

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